Costco Wholesale Corp historical data
| Date | Open | High | Low | Close | Adj. close | Volume |
| 2012-09-25 | 102.48 | 103.11 | 101.43 | 101.44 | 74.158 | 1,793,363 |
| 2012-09-24 | 102.75 | 102.95 | 102.22 | 102.61 | 75.013 | 1,223,776 |
| 2012-09-21 | 102.76 | 103.51 | 102.08 | 102.36 | 74.830 | 3,328,591 |
| 2012-09-20 | 101.58 | 102.68 | 101.50 | 102.64 | 75.035 | 1,356,568 |
| 2012-09-19 | 102.40 | 102.42 | 101.71 | 101.88 | 74.480 | 1,663,939 |
| 2012-09-18 | 102.20 | 102.21 | 101.70 | 101.99 | 74.560 | 1,464,064 |
| 2012-09-17 | 102.10 | 102.78 | 101.98 | 102.25 | 74.750 | 1,306,808 |
| 2012-09-14 | 102.68 | 102.88 | 101.95 | 102.19 | 74.703 | 3,195,385 |
| 2012-09-13 | 100.79 | 102.89 | 100.54 | 102.75 | 75.116 | 1,901,820 |
| 2012-09-12 | 99.990 | 100.96 | 99.500 | 100.89 | 73.756 | 1,770,520 |
| 2012-09-11 | 100.37 | 100.54 | 99.460 | 99.520 | 72.754 | 1,626,973 |
| 2012-09-10 | 99.490 | 100.71 | 99.340 | 100.45 | 73.434 | 1,288,422 |
| 2012-09-07 | 100.00 | 100.00 | 99.170 | 99.720 | 72.900 | 937,505 |
| 2012-09-06 | 98.720 | 99.990 | 98.720 | 99.980 | 73.091 | 1,462,532 |
| 2012-09-05 | 98.250 | 98.480 | 97.770 | 98.220 | 71.804 | 1,156,475 |
| 2012-09-04 | 97.790 | 98.610 | 97.070 | 98.150 | 71.753 | 1,184,881 |
| 2012-08-31 | 99.280 | 99.280 | 97.710 | 97.870 | 71.548 | 1,692,572 |
| 2012-08-30 | 97.560 | 99.060 | 96.550 | 98.590 | 72.074 | 2,426,382 |
| 2012-08-29 | 95.600 | 97.270 | 95.600 | 97.110 | 70.992 | 1,494,645 |
| 2012-08-28 | 96.320 | 97.130 | 96.210 | 96.570 | 70.598 | 907,975 |
| 2012-08-27 | 96.150 | 96.850 | 95.830 | 96.640 | 70.649 | 1,112,075 |
| 2012-08-24 | 94.680 | 96.410 | 94.390 | 96.250 | 70.364 | 1,257,400 |
| 2012-08-23 | 95.180 | 95.486 | 94.690 | 94.740 | 69.260 | 1,155,674 |
| 2012-08-22 | 95.330 | 95.980 | 95.050 | 95.530 | 69.837 | 842,224 |
| 2012-08-21 | 95.950 | 96.130 | 95.160 | 95.290 | 69.662 | 1,256,440 |
| 2012-08-20 | 96.000 | 96.120 | 95.640 | 96.020 | 70.196 | 684,339 |
| 2012-08-17 | 96.790 | 96.840 | 95.860 | 96.140 | 70.283 | 1,520,576 |
| 2012-08-16 | 96.230 | 96.610 | 95.700 | 96.480 | 70.532 | 1,638,043 |
| 2012-08-15 | 95.840 | 96.890 | 95.510 | 96.470 | 70.525 | 1,082,284 |
| 2012-08-14 | 96.000 | 96.000 | 95.370 | 95.670 | 69.940 | 1,187,400 |
| 2012-08-13 | 95.080 | 95.630 | 94.840 | 95.630 | 69.910 | 830,443 |
| 2012-08-10 | 95.020 | 95.430 | 94.510 | 95.300 | 69.669 | 1,214,895 |
| 2012-08-09 | 95.820 | 95.900 | 95.050 | 95.370 | 69.720 | 1,006,960 |
| 2012-08-08 | 95.940 | 96.350 | 95.440 | 95.630 | 69.910 | 1,369,690 |
| 2012-08-07 | 96.720 | 96.930 | 95.750 | 95.800 | 69.834 | 1,705,594 |
| 2012-08-06 | 97.180 | 97.195 | 96.420 | 96.500 | 70.344 | 1,071,384 |
| 2012-08-03 | 97.000 | 97.380 | 96.710 | 97.210 | 70.862 | 1,371,571 |
| 2012-08-02 | 95.600 | 96.340 | 95.000 | 95.700 | 69.761 | 1,373,414 |
| 2012-08-01 | 96.430 | 97.170 | 95.630 | 95.940 | 69.936 | 2,839,018 |
| 2012-07-31 | 96.140 | 96.580 | 95.560 | 96.180 | 70.111 | 1,361,883 |
| 2012-07-30 | 97.110 | 97.300 | 96.140 | 96.460 | 70.315 | 1,838,039 |
| 2012-07-27 | 96.150 | 97.760 | 96.070 | 97.110 | 70.789 | 1,564,670 |
| 2012-07-26 | 94.950 | 96.130 | 94.855 | 95.910 | 69.914 | 1,562,097 |
| 2012-07-25 | 94.190 | 94.250 | 93.200 | 93.750 | 68.339 | 1,462,286 |
| 2012-07-24 | 94.520 | 94.520 | 93.430 | 94.080 | 68.580 | 1,278,486 |
| 2012-07-23 | 95.110 | 95.110 | 93.870 | 94.390 | 68.806 | 1,546,901 |
| 2012-07-20 | 95.800 | 96.400 | 95.090 | 95.610 | 69.695 | 2,024,355 |
| 2012-07-19 | 96.020 | 96.380 | 95.070 | 95.950 | 69.943 | 1,602,228 |
| 2012-07-18 | 95.680 | 96.430 | 95.520 | 95.960 | 69.950 | 1,788,304 |
| 2012-07-17 | 95.300 | 96.350 | 94.910 | 96.060 | 70.023 | 1,767,900 |
| 2012-07-16 | 94.540 | 95.360 | 94.102 | 95.150 | 69.360 | 1,313,842 |
| 2012-07-13 | 94.110 | 94.970 | 93.740 | 94.810 | 69.112 | 1,510,462 |
| 2012-07-12 | 94.090 | 94.240 | 93.110 | 94.020 | 68.536 | 1,895,111 |
| 2012-07-11 | 93.880 | 94.720 | 93.750 | 94.500 | 68.886 | 2,074,753 |
| 2012-07-10 | 94.470 | 94.750 | 93.650 | 93.800 | 68.376 | 1,867,515 |
| 2012-07-09 | 94.000 | 94.340 | 93.180 | 93.970 | 68.500 | 1,511,249 |
| 2012-07-06 | 94.060 | 94.700 | 93.460 | 93.680 | 68.288 | 1,721,957 |
| 2012-07-05 | 93.460 | 94.530 | 93.440 | 94.000 | 68.522 | 1,902,158 |
| 2012-07-03 | 94.510 | 94.620 | 94.100 | 94.420 | 68.828 | 1,120,879 |
| 2012-07-02 | 95.000 | 95.550 | 94.230 | 94.400 | 68.813 | 2,279,491 |
Stock splits
| Date | Split (new : old) |
|---|
| 2000-01-14 | 2:1 |
| 1993-10-22 | 2:1 |
Dividends
| Ex-date | Amount |
|---|
| 2026-07-24 | 1.4700 USD |
| 2026-05-01 | 1.4700 USD |
| 2026-01-30 | 1.3000 USD |
| 2025-10-31 | 1.3000 USD |
| 2025-08-01 | 1.3000 USD |
| 2025-05-02 | 1.3000 USD |
| 2025-02-07 | 1.1600 USD |
| 2024-11-01 | 1.1600 USD |
| 2024-07-26 | 1.1600 USD |
| 2024-04-25 | 1.1600 USD |
| 2024-02-01 | 1.0200 USD |
| 2023-12-27 | 15.0000 USD |
| 2023-11-02 | 1.0200 USD |
| 2023-08-24 | 1.0200 USD |
| 2023-05-04 | 1.0200 USD |
| 2023-02-02 | 0.9000 USD |
| 2022-10-27 | 0.9000 USD |
| 2022-07-28 | 0.9000 USD |
| 2022-04-28 | 0.9000 USD |
| 2022-02-03 | 0.7900 USD |
| 2021-10-28 | 0.7900 USD |
| 2021-07-29 | 0.7900 USD |
| 2021-04-29 | 0.7900 USD |
| 2021-02-04 | 0.7000 USD |
| 2020-12-01 | 10.0000 USD |
| 2020-10-29 | 0.7000 USD |
| 2020-07-30 | 0.7000 USD |
| 2020-04-30 | 0.7000 USD |
| 2020-02-06 | 0.6500 USD |
| 2019-10-31 | 0.6500 USD |
| 2019-08-29 | 0.6500 USD |
| 2019-05-09 | 0.6500 USD |
| 2019-02-07 | 0.5700 USD |
Open, high, low and close are as traded (USD). Adjusted close accounts for splits and dividends. Educational only, not financial advice.